A. get code name of the browser of a visitor
B. set code name of the browser of a visitor
C. None of the above
<script language="javascript"> function x() { document.write(2+5+"8"); } </script>
What is the output?
<script type="text/javascript"> var s = "9123456 or 80000?"; var pattern = /\d{4}/; var output = s.match(pattern); document.write(output); </script>